Carton-stapling machine.



y E. CRMG.

CARTON STAPLING MACHINE.

APPLICATION FILED JULY 2G. 1915.

' Patented Get. 1, m18

mllllll:v

E. CRAIG.

CARTON STAPLING MACHiNE. APPLICATION min JULY 26.1915.

1,280,410. Patented oet. 1, 1918. I

4 SHEETS-SHEETn UNITED.

EDWARD CRAIG, OF ST. JOSEPH, MICHIGAN, ASSIGNGR T0 SARlC M XGHY' ORGlFLSTAPLING MACHINE.

Specicaton of Letters E'etent,

Application filed .Tuiy Z, 1915. Serial No. LEZ-52.

.of that kind in which the various elements thereof are zu-renged for stapling together the overlapped portions .of a carton blank, the staples being driven in a row close to one corner of the carton, and the flaps et the opposite ends of the carton being left unfolded and open.

Another object is to provide :in improved construction end arrangement whereby the staple driver` and all of the parts attached thereto are detachable and removable as o, unit Y y Another object'is to provide e staple former and a staple driver o1 novel `construction and formation, the two being eutaway to form an interlocking construction, thereby to hold them together, and the spring for the staple former being carried b v the 'driver in a novel and effective man-v ner, as will hereinafter more fully appear.

Another ,object is to provide improved ineens for supporting the blank duringN the staplingoperation, of such character that the adjustment of the table orwvork support. will au'oimxvticallyY change the position of the anvil or clenching device, whereby independent adjustment oi said device Will not be necessary.

Another object is to provide construction andA arrangement,- whereoy no hangeror body support will be necessary for the guide by which the carton blank is guided to the stapler, so that clearance will be provided 1for the manipulation of the carton blank, and tov avoid the use of certain devices and features of construction heretofore considered necessany.

lt is also en object'to provide certain details and features of construction and corn-- an Vimproved binations tending to increase the' general' eiiieiency and desirability of e stapling inachine orl stitch/er of this particolar eheracter. A

To these and other useful ends my invention consists in matters herein-after se forth and claimed.

in the accompanying driwfingsv ci" Figurel is a side elevation oi machine or socalled stitcher ernia( principles of my invention.

Fig. 2 is a section on line if Fig. 3 is e plan view of a portion o? certomend the adjacent portions oi table and yielding plate for supporting clenching device, illustrating the :method feeding the blank .over the table and snpport to the stapler.

n l un? Fig. 4 is a vertical longitndinni of the stepling head.

Fig, 5 is e perspective of one of t ton blanks after being stepled one corner thereof.

Fig. (i is a 'front elevation ci the e or resilient support 'for feedingA the blanlto the stapler, said support the clenehingg device :vieldingly thereon, whereby said cienchingf device thrustdownward b v the stapic the pressure is' resisted by 'the Fig. 7 is a vertical section in Fig. 6.

Fig. 8 is a front elevation of the stoplini mechanism, showing the liront piete olr the casing removed to bring into view the stagne driver and staple forme and other elements or the mechanism by which the stapies ere formed and driven.

. and staple former ioclied together i'or dovfnward nim'einent to forni the staple.

Fig. i() is a perspective oi the elf-epic end et, hein .i in' ny i me' ner upon the plvoted bracket.' F of die liniible rlliie plate E extends forward to tbe .iront edge lof the tabl@ the inner edge G m wiiii en ripper rib i `vliieli the sind fi This provides e splice or oetween the said, bar :ind nale for lili@ .feeding of the materiels .to the oler, lille lieiiible end oi-lion if or aid imi- I rlisporied bei w #fie stapler :ind prom .i Wit-li an Miri cleneitaing die The reoeiviiig end of said bar lil is en. with die side. edge e oi" plaie E, so that ,lie inner i n-iil fsieili'olefjl. Ali a widlt "so insure cured by 1 dei to, i.

top 'mili v u d 'linnn :1, 'point Home fed poriion 2 or g4slid piiiieLimd wliicli. @nie-nds a?. its other end below the need B. The vertical wall oi this f ii E is fastened in any suitable 'manner ie brackets la', und. the latter are secured wiz the plate ,E by any suitable meansa "op of the tflble D is provided wiih ad:

gages L which engage one edge of ierials when the latter re moved i the inaoliine to receive the staples. 'ing to Fig. 5, the ezirton to be made Y limi; formed with Sections l, 2, liicb forni the sides of the carbon, "n :i Hup 5 which is, stapled upon the .inrliriee ol' Cie. Side wall section 1 in i :inner Shown. The flaps 6 at the open 4 io enrton are oldable to Close the manchino shown and described i ,or he purpose of inserting the 17 '1) connect togetherthe two ends :ibie blank. This is done by inii iid blank in the manner shown l 23, il', being observed tliatvtlie riferi in libe guide channel 1 and wail Si: lion l rests on the plate l .filides under *elle guide K the oarblmil is 'piisl'iei` forward to bring the rtiijing p lions l and ultimately o di contini, .riil eiiei'i other at si point LY ielow iie emploi'. AS the blank n -i forward the simples i' are inserted and imm-lied on tire anvil l,l in :i manner that will be reiidij: iindereipood. Thus, und with Zehe nene shown, lie c rlion biunk travels right lo left noob' llie front of +the l end during; me insertion of the ie lleiiibo pori-ion 2' of libe, bar H is Conni-re' L minogue lowiimii'd iiggiiinnsl the liible l), it being; ode however., that the iower portion @orion blank is beween this bnr und L @i Said table :it lliis time. The .plaie i@ being also i ro o1' l resilient, ii follows that devices time provided. for guiding the Corton lilimlto bie slzipler irre zidiiped to yield readily izo lie p Sure of 'elle stapler, the torque olf smid plaie Fi reeiilting from ,the torsional Strain imposed thereon by tbe pressure of lne stapler on the end of the guide ll, whereby the worl; ie solidify and iiri eiiiiporled by the table below during' eind iiiiisiniicii. we tlie plaie by the table l), or rigidly z il follows thai, the up v oi' 'liie table will not L and ille latif and i y n zi Lidi but i Ye b Coiiseo; lien ixi everywhere said guiaT As shown in zuid 55 lo ll ineiusire, flie etiplirff iiievlnin '15in ifs ne follows: The driver U 1e reversible end, for end and is mounted on the boel; u which slides up zuid cl miriinee ziliiive lne down in the. iriuno or gl'iidewzijyWv and which is connected by a link 8 with elle crank pin 9 on *die crank plate m of the shaft M. A liitcli l() is pivoied on the front of Suid boel; 'u and is provided wili a Spring 1l which ronneots iis npger end with the upper end of the bank u, or direotly with the bead lil off the iiiot for link. The buck or driver body i cui' away :it one edge thereof lo form ii recess i'orjbe Gonipreesion spring 'i3 which is mounted on lle rod lll` whereby the hitter is movable up :ind down and is yieldingly held in position by said i'giring. The staple 'former X also reverfsible end for end, when it is desired to change tbe ienggtli of the stables, nd is out away ai, u: on the rear side thereof to accommodate lie lower pori/ions l5 of the driver boel: or body, being' also provided with guides 'i6 inv which the drierU ,slidee which is mounted the anvil 'the he support Lesen-io up and down. The pin l'7fon the front of the said staple former slides up and down in the .groove 18 in the front plate of the easing of the stapler, 'this plate being pivoted at its upper end 19, to swing outward at Aits lower end. The back of the driver body is also provided with a cam 2() for operating the pivoted member Y upon y that copera'tes with the staple former to produce the stap It will be seen that this anvil has a narrow slot 2l through which the wire is fed, and it will be understood that the lower end ot' the staple former X then comes down and embraces the said bloel or anvil i/ to torni the staple in the usual and well lrnown manner. AS soon as the driver U strikes the top portion 22 of said anvil, the cani 20 then releases the member Y, allowing the latter to tilt and carry the anvil out of the path of the staple driver. staple support is pivoted at 2st upon the said anvil, and is in turn pivotally connected with the end of a rod 'whieh carries a Compression spring 26, to yieldingly and normally holdr the said staple support in positione The other end of this rod 25 slides in the lower end of a guide 27 secured to the hub portion of the member Y, whereby the ext ision oi' said springr Q6 serves to push the annie support :23 outward and into position. t the saine time, however, and when ple driver descends to insert the the spring 26 is compressed to permit oppor*- to move out of the path of said driver, and in this way the latter praotienlly wipes the staple head oil from the upper edge of the support 23, in a manner that will be readily understood. The latch l0 engages the upper end of the staple former as Shown in Figs. 8 and 9, when the staple-driver and staple former start downward, whereby they are readily looked together. The lower end of the rod 14 also engages the upper end of the staple former. When the latch 10 engages the cam screw 28 at the lower end of the curve 29 in which the `latch travels up and down, the staple former iS unlockedrelative to the staple driver, and the latter then moves downward alone,lthe spring 13 beingl compressed at this time and erving to yieldingly hold the staple former u the work to form a guide for the .insertion of the staple. When the staple driver and former move upward the spring lil then exiiands and moves the staple forn'ier downward on the body of -the driver, and the latch l() again brought into looking position by the springer il, whereby the parts are again in position to move downward. lt will he seen that the anvil jf/ is held in place hiv :i single screw 30, and that its other cnil is provided with a slot 3l similar to the slot 2.11, and also with a recess 32t`or when the anvil`v is reversed or turned end for end. ln this way the staple driver and the staple former are reversible to vary the length of the staples, and the anvil y is accordingly reversible, it beingr observed that the other parts operate in the desired manner regardless of whether the staple driver and staple former and anvil are turned in one dire tion or the other. ln other words, the latch 10. will operate with either end of the staple former, and the pivoted staple support 23 will work on either end of the anvil y, and thus variations in the thickness o'f the carton' blanii: are easily taken care off' without suhstitoting other parte in the machine.

The invention is not limited, of course, to the exact construction shown and described. `Wliat l claim as my invention is l. A. machine i'or stapling; together the overlappingr corner portions of a carton blank, to form a carton which ,is stapled along one corner and open at both ends thereof, comprising a guide-bar for supporting said overlapping portions and `for guiding the-folded blanlr into position for stapling, means onvsaid bar to elenoh the stef ples, a table below said guide-bar, a stapler above said cleric-hing means.y e wide flenlble late of sheet-metal extendinYT toward 'the front .of the machine at one side of said stapler and. provided with an end portion to extend between said overlapping portions to yieldingly support said bar, so that pressure of the stapler on said bar imposes aJ torsionalstrain on said plate, a device on said plate to engae the edge of the upper overlapping portion, one side edge of said plate being substantially even for its full length with the receiving end of said guidebar, and means out of line Withsaid stapler to support said plate a. distance iaelr from said guidebar, so that torque of said plate permits said guide-bar to move downward until supported by said table, said means being disposed below the plane of said plate and in rear of the area to be Covered by the blank.

2. A machine for stapling together the overlapping corner portions of a carton blank, to form a carton which is stapled along one corner and open at both ends thereof, comprising a guide for supi'iorting said overlapping,r portions and for guiding the Afolded blank into position for stapling, said guide to clench the staples, a table below said guide, a stapler above said clenoliing means, a. flexible plate of sheetmctal extending toward the frontoi the machine at one side of said stapler and provided with an endportion to extend between said overlapping portions to yieldingly support said guide, so that pressure of the stapler on said guide imposes a torsional strain on said plate, a device on said plate to engage the edge of the upper overlapping portion,

iss

guide, so thatA torque of said plate permits said guide lo move downward until sup-v ported by said table, said nienns'being rigq idly secured `to the rear edge portion of said table, and said plate having one Side edge thereofsbill'ened and the other relative y flexible.

3. A machine for Stapling together the overlapping eorner portions of .a carton blank7 to-orm a carton which is empleo along one corner and open at both ends thereof, comprising a guide for supporting said overlapping portions and for guiding the folded blank into position for Stapling means on said guide to elench the staplesj a table below Said guide, :1 Stapler above said elenelling ineens; a flexible pla'ne of sneer metal extending toward the from of the machine al; one side oli' said stapler and provided with an end portion to extend bel/Ween said overlapping portions lo yieldingly snp port said guide, so that pr neuro of the sto: pler on' said bar imponen a tornional strain on id platey a devi@ on Said plate to en- ,frage the edge el? the upper overl-goil lion, said plate elendim above lli; l, `blank 'lo lorni a eoveri j j under which the blenk inner 'ne inserted to enter said guide, and means out of lino with :sanid siapler to snpporl said plate a distance back from said guidi-i7 so that torque ol" said plate permitey said guide lo move (l n\"n\\'a.rd until snpported by .said table, said device forming a, guide from under which the overlapping 40 portions are advanced to stafpling posit-ion, one corner portion nl? said plate being; turned up to' facilitate 'the insertion thereunder of one pe nin of the work.

flfA'. machine for Stapling together the overlapping corner portions of a carton :"lilnnk, to form a earon which is pled along one corner and open at, loot-ll ends rtliereof', comprising a guidexoai.' for supporting said overlapping portions and for golding the folded blank into pofition for st/apling, means on said lmr to eleneh the Staples, a table below said guide loer, a Stapler abovosaid oleneliing means, a plate extending toward the fronty oi' the. machine, and having an end portion te extend between said overlapping portions to yieldingly sup lie to' en por-ly said liar, a devi/e on Said nl.

gage the edge of lle nippel' overlapping: pory nemend means to Support Said plate at '6D right angles to seid loar, at one side of said stapler, the outer-edge ol said plate loeingv turned upward to forni a. stirfening llange and provide .a guide forlthe insertion there under of the lower overlapping portion., M 5. A vrneol'line for stapling together the port, said plate a distance back from said` overlapping corner por'lone oii blank, to form a. enrton which i along one Corner and. open al'. thereof, comprising' n guide forV said overlapping portion" l Y the 'folded blank into position means on said I@guide lo elenon table below :and guide, a stapler alan, elenel'iingr infne, e. flezilole plate o?? metal extending machine one l.ided will; an enz orlion lo ext said overlapping portions; to lport said l Stapler on .A n f'-, Strain on Said pl Je a devi on to engage the edge elio 'zipper ei porlziom said plalze extending al) folded blank to :form a eovering un" the bln/nl; moet; be inserted to enik guide, and rneane out of line n' Stapler o inner aid plane from Said guide2 eo lia'e Jerome permite Said guido f supported 'l2- v said posed on said table in front' of engage lie reni.' folded corner blank, one corner portion ol* Said i turned an to liaeiliate lle insetti under ofi' one normen i,

f. lemon niaeliine driver, a liaell jor Said cured lliereio, a pivo ed lo spring' pleased rod on san l ered on the upper end of all ,if i Said elemente being removaljrle other as a nniz, a z-etajple liorn'ier engaged by said l-oeli and rod and meer eoipereliing with aaid Staple i' r lo n. ,ie the eli i 7. l staining machine eo; driver, a lean-l1; l sai-'l cured lnarelo, a f Spring pren l :rod on said lm-1l4 oted on the. upper end el wifi f said elemente bri-ing; reniova,

l hack being eut away at one edge thereof to aecommodate said rod, and said lordi, and link being disposed respectively at fron@ and rea of said beek, 13o

9. A stapling machine comprising a staple driver, a hack plate. for said driver, and a staple former having a groove for said' driver, the rear side of said former being out away at the center to form a recess, and said back plate having its lower end provided `with shoulders at opposite sides of the driver and working up and down in said recess to lift said staple former. 4

10. A stapling machine comprising a staple driver, a hack plate for said driver, and a staple former having a groove for said driver, the rear side of said former being cut away at the center to form a recess, and said back plate having its lower end provided With shoulders Working up and down in said recess to lift said staple former, said former being reversible and having a pair of lifting shoulders anda pair. of staple forming portions at each end thereof.

1l. A stapling machine comprising a staple driver, a hack plate for said driver, and a. staple former having a groove for said driver, the rear side of said former loeingA cut away at the center to form a recess, and said back plate having its lower end provided with shoulders at opposite sides of the driver' and working up and down in said recess to lift' said staple former, said back plate having a spring to hold the staple former normally upon said shoulders.

l2. A machinecomprising a staple driver, a back plate for said driver, rigidly fixed thereto, a staple former, and means includin a spring in said back plate to yieldingly ho d said former in position, said back plate having one side edge thereof cut away to accommodate said spring, so thatr said spring is disposed for expansion and contraction between tivo portions of said back, which portions are at opposite ends of said spring, the arrangement being such thatsaid means are in the plane of said back plate.

Signed by me at Chicago, Illinois, this 10th day of July, 1915. EDVARD CRAIG.

, Witness:

ROSE E. SEHNEM. 

